641616127 has 2 divisors, whose sum is σ = 641616128. Its totient is φ = 641616126.

The previous prime is 641616121. The next prime is 641616133. The reversal of 641616127 is 721616146.

It is a balanced prime because it is at equal distance from previous prime (641616121) and next prime (641616133).

It is a cyclic number.

It is not a de Polignac number, because 641616127 - 2¹¹ = 641614079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 641616092 and 641616101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641616121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320808063 + 320808064.

It is an arithmetic number, because the mean of its divisors is an integer number (320808064).

Almost surely, 2^641616127 is an apocalyptic number.

641616127 is a deficient number, since it is larger than the sum of its proper divisors (1).

641616127 is an equidigital number, since it uses as much as digits as its factorization.

641616127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 34.

The square root of 641616127 is about 25330.1426565268. The cubic root of 641616127 is about 862.4986496373.

The spelling of 641616127 in words is "six hundred forty-one million, six hundred sixteen thousand, one hundred twenty-seven".